Vehicle wheel-rim.



VJ. R. GAMMETER. VEHICLE WHEEL RIM.

APPLICATION FILED MAY 21, 1907` I' .viva l ATTORNEY TIGQ.

JOHN B. GAMHETEB, 0l' AKRON, 0HIO,

B. l'. GOOIDRIOH COMPANY,

ASSIGNOR, BY MESNE ASSIGNMENTS, T0 THE A CORIfORATION 0F NEW YORK.

VEHICLE WHEEL-RIM.

Specification o! Letten Patent.

Patented Feb. 24, 19Std.

Application filed Bay 21, 1907. Serial No. 874,903.

To all whom t may concern y Be it known that I, JOHN R. GAMMETER, a citizen of the United States, and a resident of the city of Akron, in the county of Summit, State of Ohio, have invented certain new and useful Im rovements in Vehicle Wheel-Rims, of which the followin is a specification, reference being had to tie accompanying drawings, forming a part thereof.

My invention relates to vehicle wheel rims made in two parts, one part of which, carrying the tire, may be removed from the fixed part of the rim and the new tire plut on or a similar part already provided with a tire substituted for the removed part.

My invention also contemplates means for providing this detachablepart or-rim with devices or readily engaging or d1sen gaging the tire. I have shown in this case means for holdin the tire of the general form shown and c aimed broadl in my Patent No. 969,779, dated Septem er 13, 1910, though it is obvious that any other i'neans may be provided for retaining the tire in lace.

p It is of great advantage to be able to quickly detach the rim and tire from a wheel and substitute a new rim and tire, as the new tire may be carried ready inflated on the rim and the time usually necessary for inflating the tire can be saved. T liis is of especial advantage where time saving is an element of material value. It is also of advantage to provide means for uickly removing the tire from the detacha le rim as in that case the tire can be removed and reaircd and be reinflated ready to be pnt ack on the wheel if another accident should ha en.

ore specifically this invention contemplates the use of an endless detachable rim provided with means for en aging a tire and adn ted to seat on a fixe rim attached to the wlieel felly. Means are carried by the fixed rim, in this case inclined screws, for holding the detachable rim upon its seat. It is to be understood however that the invention is not limited to the specific forms selected for purposes of illustration but that the different parts may be freely modified so long as their several functions are performed relatively to each other without altering the eHective combination of elements.

In the drawings, Figure 1 is a cross section of a detachable rim constructed in accordance with my invention and showing the foot of a tire seated thereon. Fig. 2 is a cross section through the detachable rim, the tiie, the fixed rim and the felly showing one of the inclined screws for retaining the detachable rim inplace. Fig. 3 is a ra mentary side elevation of the tire, rim an felly shown in Fi 2. Fig. 4 is a cross section of the detacliab e rim and the tire taken at the valve stem. Fig. 5 is a cross section of the felly and fixed iim showing the opening for the valve stem. Fig. 6 is a view of the under side of the felly, rim and tire shown in Fig. 8, one of the wheel spokes being shown in section. Fi 7 is a side elevation of a ortion of the etachable rim and tire showing the valve stein, one of the abutnients for the retaining screws appearing in dotted lines.

Referring to the drawings by reference numerals, 1 is the tire which is 1n this case shown as a clencher tire thou h it is obvious that by properly modifying lie form of the tire retaining flanges any other type of tire may be used.

2 is the detachable tire seating rim provided at one edge with a fixed tire retaining flange 3, the ot er edge in this case being provided with a groove 4, endless locking ring 5, and endless removable tire rctaining flange 6 similar to the structure shown in my application above referred to. This tire retaining flange 0 is as shown of the proper size to fit upon the tiro seating part of the rim 2. It is rovided on its outer lower edge with an inclined face 7. The locking ring 5 is provided with an inclined face 8 to engage the inclined face 7 and with a cut out portion 9 to cn age the upper edge of t e outer wall o groove 4. The outer diameter of this locking ring 5 it will be seen, is greater than the inner diameter of the flange 6 so that the flange 6 cannot ass over the locking rin ordinarily. he inner diameter of the oeking ring is less than the diameter of the outer edge of the wall of roove 4, so that the loc ring ring will ordinarily not pass over the said edge. However by dropping one part of the locking ring into the groove 4 and sprngin the ring slightly out of circular shape, it ecomes easily removable. The flange 6 and also the tire can then be readily slipped oil` the detachable rim. Itl is also possible as an alternative mode of operation tto .merely dro groove 4 at t e top and then slip the `top part of the flan e 6 over the rin in the groove and free rom the outer wal of the groove and then drop the flange so that it will clear .thelower projecting part of the locking ring when it can be entirely removed. The tire can then be slipped off in the same way. I have shown in Fig. 1 a filling lug 18 fixed 'in the bottom of groove 4 in any suitable Imanncr. This lug preferably has a 'length of about one thir of the circumference of the rim and should be placed diametrically opposite or nearl so to the valve stern which is provide with the -usua'l Icli The purpose of this lug is to lprevent't ie locking ring 5 from accidentally slippin into the oove 4 in case the tire should' ecome de ated while in use. Possible displacement of the other side of the ring 'is'prevented by the clip. The operation is'substantially as above describe the clip being first loosened and moved out of the way, when the rin can be dropped into the oove at that si e of the wheel where there is'no filler. This arrangement of locking ring and filler lug may be advantaeously employed on a fixed rim such as illustrated in my case above referred to, or on a rim made detachable in any other manner.

For retaining the detachable rim in place a fixed rim 10 secured to the felly 17 in any suitable manner, is used, rovidcd on one edgewith an u wardly an outwardly bent flange '11 forming an inclined face 12 for supportin the edge of the detachable rim car ing ve flange 8. The other edge of the fixe' rim is provided with a downwardly 'bent flange 13 upon which the lower art of the wall of groove 4 seats. At desired intervals the fixed rim is rovided with screw threaded sockets 14 inc ined inwardly and upwardly. Screws 15 provided with heads of suitable form for engagement with a wrench or screw driver are screwed in these inclined sockets. The inner end of each screw is adapted to engage an abutment 16 formed on the inner surface of the detachable rim. These screws are inclined in the same general direction as the inclined faces of flanges 11 and 13 so that when they are turned up they tend to wedge the detachable rim u on the said inclines thus making a very1 rm and solid connection. This means of holding the detachable rim upon the fixed rim may obviously be used with a rim of any desired form, either one provided with fixed tire flanges or with any type of removable tire flange other than vthe one shown. To detach the detachable rimirom theflxed rim 'it is merel necessary e5 to withdraw-the screwssuflicient y to disenthe locking ring 5 into the.

gage .the lugs or abutments 16 and permit them to slide off over ythe ends of the screws, when the detachable rim can be freely slipped off. Another rim is applied by merel slipping it in place against the iiieliiie flanges of the fixed rim and screwing up the screws. The valve stem will of course be first inserted in its opening in an obvious manner.

Having thus described my invention, I claim:

1. v'In combination in a vehicle wheel, a fixed rim, a detachable rim and inclined screws carried by said fixed rim and engaging abutments on said detachable rim for holding the latter iii place.

2. In combination iii a vehicle wheel, a riin provided with a tire seating portion, a groove at one ed re of said tire seating portion, a detaclia le tire retaining flange ada ted to engage said tire seating portion, sai retaining flange being provided with an inclined lower outer surface, an endless locking ring adapted to fit in said groove having an inner diameter less than the diameter of the outer wall of said groove and an outer diameter greater than the inner diameter of said retaining flange and provided with an upper inner face of the same inclination as the inclined face on the tire retaining flan e.

8. In combination in a vehicle wheel, a detachable tire seating rim provided at one edge with a fixed tire retaining flange and at the other edge with a downwardly, outwardly and upwardly bent portion forming a groove for retaining a locking ring, a fixed rim rovided with an upwardl and outwardly inclined flange at one e ge adapted to engage the detachable rim near its fixed tire retaining flan e, and a downwardly inclined flange at t e other edge adapted to engage the dowiiwardl and outwardly bent portion of the detacha )le rim, screw t ireaded sockets in said fixed rim inclined from the side ofthe rim carrying the downwardly projecting flange, u wardly toward the side of the rim provided) with an upwardly and outwardly projecting flange, a sci-ew for each socket and abutments on the inner surface of the detachable rim for engagement with the screws.

4. In combination in a vehicle wheel, a fixed member, a detachable rim member, and headed screws screwing through threaded openings in one of said members, the points of said screws engaging abiitmeiits on the other of said members and actin to force said detachable rim member latera ly.

5. In combination in a vehicle wheel, a fixed rim, a detachable rim, and inclined wedging screws carried b one of said rims .engaging abutments on tie other rim.

n combination in a vehicle wheel, a xedmeniber and a detachable rim member,

and screws screwingxnto threaded openings 1n one of said mem rs and engaging abutments on the other of said members and actmg to force said detachable rim member laterally, said screws disengaging said abutments and permitting the removal of the detachable rim member when partially withdrawn.

7. In a vehicle wheel rim, the combination of a tire-seating member, a removable endless, tire-retaining flange, and an endless locking ring, said tire-seating member being formed with a groove along one edge, a fil ing lug fixed in said groove or a portion of its length, said locking ring being adaptf ed to enter the ortion of the groove not occupied by the in lug.

8. In a vehicle weel rim, the combination of a tire-seating member having a groove along one edge, a filling in said groove for a portion of its length, an endless tire-retaining iange, and an endless locking ring adapted to enter said groove and havin an inner diameter less than the diameter o the edge of the outer wall of said groove.

JOHN R. GAMMETER.

Witnesses ARTHUR E. DAvlsoN, WALTER K. MEANs.

Oertel o! this patent muy be obtained for dve cents each, by addressing the Commissioner o' Patents,

Washington, D. 0. 

